Nicholas Pennell (19 November 1938 – 22 February 1995) was an English actor who appeared frequently on film and television in the 1960s and emigrated to Stratford, Ontario, Canada, where he became a stalwart of the Stratford Festival.

In 1972, he joined the Stratford Festival company upon the urging of William Hutt. In his first season, he appeared as Orlando in As You Like It opposite Carole Shelley as Rosalind. The following year he returned to star as Pericles in 1973 in a production designed by Leslie Hurry and directed by Jean Gascon.

When Robin Phillips became artistic director in 1975, he found a familiar face. The two had worked together in the 1969 TV film of David Copperfield, and Phillips too was also in The Forsyte Saga. Phillips recruited Pennell to join his young company and perform in The Comedy of Errors and The Two Gentlemen of Verona. 1976 brought Hamlet and Ariel in The Tempest. He often said he worshipped Phillips as an actor.

Pennell was now a leading member of the company and passionate about the festival and acting Shakespeare became his vocation. He was a generous company member speaking to student groups and mentoring young actors. In 24 seasons he played a wide range of characters from Stephano in The Tempest, Iago, Richard II, the Fool in Lear, Sassoon in Not About Heroes to King John.